In this photo illustration, customers order food from a McDonald's restaurant on in Des Plaines, Ill.

Written by

Bruce Horovitz
USA TODAY

Roughly one decade after the film Super Size Me skewered McDonald's for selling food that the hit documentary film claimed was not healthy and lacking in key nutritional elements when consumed regularly, there's a new, unexpected twist to the experiment that had director Morgan Spurlock gaining weight and getting sick after chowing-down on McDonald's food only for 90 days.

The new twist: A science teacher in the Colo-Nesco School District in Colo, Iowa, says he lost 37 pounds in 90 days also by eating only McDonald's food ...